Apparatus for filtering water, sewage, and the like.



H. SHILLINGTON. APPARATUS FOR FILTBRING WATER, SEWAGE, AND THE LIKE.

APPLICATION FILED JULY 30, 1909.

Patentd Apr. 4, 1911 Tllllllllnll] Ili- HENRY SI-IILLINGTON', 0F LURGAN,IRELAND.

APPARATUS FOR FILTERING WATER, SEWAGE, AND THE LIKE.

Specification of Letters Patent.

Application filed July 30, 1909.

Patented Apr. 4, 1911.

Serial No. 510,482.

To all whom it may concern:

Be it known that I, HENRY SHILLINGTON, a subject of the King of England,and resident of Lurgan, Ireland, have invented an Apparatus forFiltering \Vater, Sewage, and

the Like, of which the following is a specification.

The object of the present invention is the production of an apparatusfor the continuous filtration of firstly water, and secondly sewagewhich has been septically digested, so as to fit it for legal dischargeinto a river, or other running water.

In order that the invention may be more clearly understood, reference ismade to the accompanying drawing wherein,

Figure 1 is a. vertical section through line A-B, Fig. 3; Fig. 2 avertical section through line C-D, Fig. 3; Fig. 3 a plan of the filters;Fig. 4 shows a vertical section through line EF, Fig. 3. Fig. 5 showsaside elevation of the .distributing trough. Fig. 6 shows a plan of thedistributing trough. Fig. 7 shows a plan of the filters of a secondmethod of filtration. Fig. 8 shows a vertical section through line C-Din Fig. 7.

In putting my invention into practice I provide two filter chambers 141to allow of the alternate use necessary for periodic cleansing and thelike. The said filter chambers are of ordinary construction, founded onconcrete beds 1 and the walls may be concrete, brick or stone, andpreferably laid in cement mortar. I furthermore provide a septic tank 2with a bend 3 and a receiving chamber 41 into which the sewage will flowby means of the said bend 3. A metal edged control weir 5 is arrangedfrom the receiving chamber, in case the sewage from the dwelling shouldbe so largely diluted in time of rainfall, as to overpower the filters.The receiving chamber moreover possesses a cover plate 6 to prevent theadmission of dust and dirt. Penstocks 7 serve to control openings in thewall which divides the filter chambers from the receiving chamber, thesewage passing'through these openings being received by distributingtroughs 8, Figs. 2 and 3. The troughs consist of shallow metal or woodentrays, Figs. 5 and 6, having holes B in their lower part for the passageof water, while the sides are provided with nicks or notches A. Thewater passes from the penstocks 7 to the troughs 8 and trickles throughthe holes ]3 to the sand layer without pitting the latter. The floor ofeach chamber, from the bottom of each of which runs an outfall pipe 15with suitable inclination, is occupied by dry bricks 13, Figs 1 and 2,laid in rows about 4 inches apart and forming channels for conveying theeffluent to the outlet pipe 15. The channels formed between the bricksare covered by tiles 12, laid one inch apart over the said channels. Onthis brick and tile floor are cinders, coke, coal or slate 11, invarious sizes commencing with larger grades, and finishing on top withcinders 1} inch to 9; inch size in cube. The top of the last layercarries galvanized iron wire nettings 10,= finely meshed and fittingclose to each other and to the sides of the chambers. On these nettingsI arrange layers of polarite 10, of suitable grading as to sizes, thetop being truly leveled. On this polarite in turn. are laid galvanizedwire nettings 10 as before, and covered with 3 inches deep of coarse,sharp, river sandor well washed pit sand 9, free of gravel,-or very finecinders, free from dust. From various levels in each chamber, galvanizediron tubes t project out in such situations as are deemed desirable, andto a height of several inches over the top of the sand layer 9 and topromote ventilation of strata.

Contrary to the filters just described, which are for downwardfiltration, Figs. 7 and 8 illustrate an apparatus for lateralfiltration. The inlet 7, from the receiving chamber 4 is the same as forthe downward filters,but a space 17 is left for the sewage to fill, andthis is faced by galvanized wire netting 16 of stout framing, andstronger than those afore-described. The sand, or fine cinders 9, thepolarite 10 and the larger cinders or other material 11, follow in sameorder, as in the apparatus for downward filtration, the sand 9, polarite10, and the cinders, etc., 11, being separated by gal vanized wirenetting 10, same as before. In each chamber, on top of the sand andpolarite layers a inch thick iron plate 19 is built into the chamberwall at each side, confining the material, and carrying low edge wall ofconcrete 18 to keep the fluid from overrunning the filter withoutpassing through it. The outlets 15 from the chambers to be lower thanthe surface of the material in them.

In either apparatus for filtration, z. e. the downward or the lateral,as described,--the relative positions and thickness of the differentmediaalso the number of the netting layers, may be altered, as theconstitution of the fluid to be filtered, may be tound to require.

The septic tankcan be of any desired size 5 and is preferably of greaterdepth than the filter chambers, while the receiving chamber 4: isshallow; the floors of the receiving chamber being only a short distancebelow the level of the bends '3 and the penstocks '7.

X-X denotes the ground level and YY denotes the level of the liquid inthe septic tank. I I v 'The successiul filtration of water will beeffected by the application of the same principles, and the use ofmaterials and means similar to those described for the filtration ofsewage; the points of difference being only those of detail, e..-g. termand arrangement of distributing channels or troughs, thicknesses ofmedia, etc.

Having fully 7 described my invention, what I claim and desire to secureby Let ters Patent is An apparatus "for filtering water, sewage and thelike comprising in combination a plurality of filter 'chambers, areceiving chamber connecting therewith, a septic tank, connecting withthe latter, outfall-pipes leading from said chambers, bricks laid on thefloors of sa1d filter chambers and formlng channels, tiles coverlng thesaid channels, filtering media, which is laid on the floors fOIDlBU. bysaid bricks and tiles, a plurality of galvanized wire 'ne'ttings fittingclose to the sides of said chambers, layers of polarite spread on saidnettings, galvanized iron tubes leading from various "levels in saidchambers, and a metal edged control weir arranged over the receivingchambers in case the sewage should be so largely diluted as tooverpo'i'ver the filters, substantially as described and shown and "forthe purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing HENRY SHILLTNGTON.

' witnesses.

Witnesses: v

C. Q. GREEN'IIEILD, F. C. MCCANN.

Copies of this inatent may be obtained for five cents each, byaddressing the Gommis'sioner of Pa'te'nts, Washington, D. 0.

